/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.io.kinesis;



import com.bff.gaia.unified.sdk.coders.*;

import com.bff.gaia.unified.sdk.coders.AtomicCoder;

import com.bff.gaia.unified.sdk.coders.ByteArrayCoder;

import com.bff.gaia.unified.sdk.coders.Coder;

import com.bff.gaia.unified.sdk.coders.InstantCoder;

import com.bff.gaia.unified.sdk.coders.StringUtf8Coder;

import com.bff.gaia.unified.sdk.coders.VarLongCoder;

import org.joda.time.Instant;



import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.nio.ByteBuffer;



/** A {@link Coder} for {@link KinesisRecord}. */

class KinesisRecordCoder extends AtomicCoder<KinesisRecord> {



  private static final StringUtf8Coder STRING_CODER = StringUtf8Coder.of();

  private static final ByteArrayCoder BYTE_ARRAY_CODER = ByteArrayCoder.of();

  private static final InstantCoder INSTANT_CODER = InstantCoder.of();

  private static final VarLongCoder VAR_LONG_CODER = VarLongCoder.of();



  public static KinesisRecordCoder of() {

    return new KinesisRecordCoder();

  }



  @Override

  public void encode(KinesisRecord value, OutputStream outStream) throws IOException {

    BYTE_ARRAY_CODER.encode(value.getData().array(), outStream);

    STRING_CODER.encode(value.getSequenceNumber(), outStream);

    STRING_CODER.encode(value.getPartitionKey(), outStream);

    INSTANT_CODER.encode(value.getApproximateArrivalTimestamp(), outStream);

    VAR_LONG_CODER.encode(value.getSubSequenceNumber(), outStream);

    INSTANT_CODER.encode(value.getReadTime(), outStream);

    STRING_CODER.encode(value.getStreamName(), outStream);

    STRING_CODER.encode(value.getShardId(), outStream);

  }



  @Override

  public KinesisRecord decode(InputStream inStream) throws IOException {

    ByteBuffer data = ByteBuffer.wrap(BYTE_ARRAY_CODER.decode(inStream));

    String sequenceNumber = STRING_CODER.decode(inStream);

    String partitionKey = STRING_CODER.decode(inStream);

    Instant approximateArrivalTimestamp = INSTANT_CODER.decode(inStream);

    long subSequenceNumber = VAR_LONG_CODER.decode(inStream);

    Instant readTimestamp = INSTANT_CODER.decode(inStream);

    String streamName = STRING_CODER.decode(inStream);

    String shardId = STRING_CODER.decode(inStream);

    return new KinesisRecord(

        data,

        sequenceNumber,

        subSequenceNumber,

        partitionKey,

        approximateArrivalTimestamp,

        readTimestamp,

        streamName,

        shardId);

  }

}